Stock food and method of preparing the same.



THOMAS BAILEY WALKER, 0F AUSTIN, TEXAS.

STOCK FOOD AND METHOD OF PREPARING THE SAME.

No Drawing.

I ter containing cellulose and the products resulting from this process.

Broadly stated, my invention consists of treating finely divided organic matter containing cellulose with certain acids under pressure, thereby freeing the cellulose and other carbohydrates from various resistive incrusting substances by. breaking up the latter and rendering the cellulose porous, friable and converting a part of the cellulose into glucoses and other carbohydrates which may be more readily absorbed by an animal in feeding.

The object of thisinvention is to produce at a low cost a stock food of greater food value from waste materials containing cellulose, such as, sawdust, wood, tanbark, grasses, husks and hulls of grain and plants, bagasse, straws, stalks of plants, low grade fibrous hays, etc., a large number of which have very little real nutritive feedingsvalue, for the reason carbohydrates are held together with incrusting substances and in this resistive form practically pass through an animal unchanged, simply giving bulk and waste when mixed with other more assimilable and concentrated foods. In my invention the cellulose and other carbohydrates are entirely dissociated from the various incrusting substances, the whole mass being rendered porous and friable, whilea part of the cellulose is converted into glucose and other carbohydrates of a much'greater nutritive feeding value, thereby converting a material of very low food value into one which canreadily be absorbed by an animal in feeding with the minimum of waste.

With this object in view, my invention consists in the matter to be hereinafter described and claimed. The process of manufacture can be 'carried out in several ways, but it is expressly to be understood that the. process may be varied to meet the diiferentconditions desiredin'the'finished product and the dif- Specification of Letters Patent.

that the cellulose and other Patented May 25, 1915.

Application filed May 29, 1913. Serial No. 770,736.

ferent classes of materials to be treated. In general praetice'the material is treated as hereinafter described.

In carrying my invention into practical effect the organic matter containing cellulose is reduced to a fine state of division in any suitable manner by crushing, grinding or shredding. Should excessive amounts of tannin be present the same is removed by leaching in the usual way. The mass is then treated with a suitable acid liquor under pressure and in process of heating incrusting. substances are broken up and any resinous matter is eliminated, the mass is rendered more porous, friable and absorbent and a part of the cellulose is converted into glucoses and other carbohydrates. After neutralization with an alkali the saccharine liquid is preferably drawn ofi. and evaporated in a triple effect and then returned to the treated product or the whole mass may be evaporated together in any suitable evaporating apparatus.

By using hydrochloric acid in this process instead of sulfurous or sulfuric acid and.

neutralizing with caustic soda I obtain salt which makes the food more palatable than when lime is used as a neutralizing agent.

* While the food described is a complete product, it .will be understood that it may be mixed with other foods, to suit the views of different users, or the condition of the stock to be fed.

Claims.

1. The process of making stock food consisting in subjecting comminuted cellulose waste materials to the action of acid liquors under heat and pressure thereby breaking up resistive incrusting substances of the cellulose, partially converting the cellulose into saccharine bodies and rendering the material porous and friable, then removlng the moisture as described.

2. The process of making stock food consisting in subjecting comminuted cellulose waste materials to the action of acid liquors under heat and. pressure thereby breaking up resistive incrusting substances of the cellulose, partially converting the cellulose into saccharine bodies and rendering the material porous and friable, freeing from the resulting product any resinous bodies and then removmg the moisture as described.

3. The process of making stock food consisting in subjecting cellulose to the' action of a hydrolyzing solution to partially convert the cellulose into saccharine bodies and consisting in subjecting the cellulose in comminutedarondition to a liquor containing hydrochloric acid in the presence of heat and pressure to hydrolyze the same and break up the incrusting bodies, neutralizing the acidity by an alkaline sodium compound and then removing the moisture.

5. The process of making stock food from a cellulose containing incrus'ting substances, consisting 1n Sub ectmg the cellulose in coman acid liquor under.

6. A stock food prepared from cellulose waste materials characterized by containing deincrusted cellulose in partially hydrolyzed condition, the material being-porous, friable and readily assimilated by an animal in feeding.

In testimony whereof I affix my signature in presence of two witnesses.-

THOMAS BAILEY, WALKER. Witnesses:

C. A. NEALE, G. E. Fn'rzER. 

